Use the latest (supported) version of Python

jsf9k · jsf9k · commit fcc6269877be · 2022-12-19T11:21:41.000-05:00
This is Python 3.7, since pshtt does not support &gt;3.7.

Also bump the base Docker image from Buster to Bullseye, and specify
the full Python version of Docker image to use.
diff --git a/Dockerfile b/Dockerfile
@@ -1,4 +1,4 @@
-FROM python:3.6-slim-buster
+FROM python:3.7.16-slim-bullseye
 
 ###
 # For a list of pre-defined annotation keys and value types see:

Original file line number	Diff line number	Diff line change
`@@ -1,4 +1,4 @@`
`1`		`-FROM python:3.6-slim-buster`
	`1`	`+FROM python:3.7.16-slim-bullseye`
`2`	`2`
`3`	`3`	`###`
`4`	`4`	`# For a list of pre-defined annotation keys and value types see:`